Home / 386,867.13-533,900.33-217,101.25

Finding the Fourth Proportional to 386,867.13, 533,900.33 and 217,101.25

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Solution

The fourth proportional to 386,867.13, 533,900.33 and 217,101.25 is: 299,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,867.13 : 533,900.33 = 217,101.25 : x
  2. Step 2: Convert to fraction form
    386,867.13/533,900.33 = 217,101.25/x
  3. Step 3: Cross multiply
    386,867.13x = 533,900.33 × 217,101.25
  4. Step 4: Simplify right side
    386,867.13x = 115,910,429,018.41
  5. Step 5: Solve for x
    x = 115,910,429,018.41/386,867.13
  6. Step 6: Final answer
    x = 299,613.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.